Home / 1,289,596.46-1,779,090.95-805,320.95

Finding the Fourth Proportional to 1,289,596.46, 1,779,090.95 and 805,320.95

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Solution

The fourth proportional to 1,289,596.46, 1,779,090.95 and 805,320.95 is: 1,110,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,596.46 : 1,779,090.95 = 805,320.95 : x
  2. Step 2: Convert to fraction form
    1,289,596.46/1,779,090.95 = 805,320.95/x
  3. Step 3: Cross multiply
    1,289,596.46x = 1,779,090.95 × 805,320.95
  4. Step 4: Simplify right side
    1,289,596.46x = 1,432,739,207,108.25
  5. Step 5: Solve for x
    x = 1,432,739,207,108.25/1,289,596.46
  6. Step 6: Final answer
    x = 1,110,998.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.